Celery

Sow a generous amount of seeds into each cell of a seed tray about 10-12 weeks prior to your region's last frost and maintain at about 70-75F or 23C for 2-3 weeks. Take care not to cover seeds too much with soil as they need light to germinate. Germination rates for this plant are low so as soon as you have shoots thin to one plant per cell. Seedlings can take a cooler environment now. Plant out about 2 weeks before you think you will get your last frost about 6 to 12 inches (15 to 30 cm) apart. Be sure to provide adequate water to avoid having bitter and tough stalks. A layer of mulch can help maintain soil moisture and keep weeds at bay. Keep stalks in the dark by wrapping them in something opaque to get a gentler flavor for two weeks prior to harvest.